4470-00-074-1246 VALVE,PILOT RELIEF Index 4820-00-074-1250 DISK,VALVE

National Stock Number:
4820-00-074-1249

Federal Supply Class:
4820

National Item Identification Number:
000741249

Description:
SEAT,VALVE

Detail:
A replaceable item designed to provide a circular stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.


Manufacturer Information:
2S5123-252406RUGGLES-KLINGEMANN MFG CO DBA THE RUGGLES-KLINGEMANN COMPANY


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER3.135 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.443 INCHES NOMINAL
UNDER FLANGE HEIGHT1.195 INCHES NOMINAL
BODY STEPPED INSIDE DIAMETER1.985 INCHES NOMINAL FIRST STEP
2.735 INCHES NOMINAL SECOND STEP
MATERIALSTEEL CORROSION RESISTING OVERALL
SEATING SURFACE SHAPEFLAT
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
NOMINAL THREAD SIZE2.875 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.342 INCHES NOMINAL SINGLE THREADED PORTION


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